To ensure that vehicle braking performance wheels for processing

To ensure the car has good braking performance, both end surfaces parallel to the brake disc requires a degree of 0.005mm, roughness Ra <0.4μm, both end faces have decorative patterns. In order to ensure equal thickness, parallel and decorative patterns, it requires the use of a fixture pole while turning both end faces, and then double-wheel grinding process while double-end, so far there are no suitable special machine. Manufacturers can only be used after the completion of the common procedure modernization of machine tools, precision machining it is not only low, low efficiency and poor security, labor-intensive. Due to the required accuracy, processing of products barely into two international auto parts market, can not be directly supporting the world's leading automobile manufacturers.